The Camp Fire has killed at least 56 people in Northern California’s Butte County and turned the hard-hit town of Paradise into ash and debris. At least two other people have been killed in another major wildfire in Southern California, putting the state’s death toll at 58 since the two blazes began last week.

In the Camp Fire’s devastating aftermath, cadaver dogs, deputies and coroners are searching the ruins where Paradise, a town of 27,000, once stood.

About 300 names are on a sheriff’s office list of people reported missing in the county, though some names appear more than once and it’s not clear if any are duplicates. Officials have said it’s hard to determine the number of missing, because some people may have evacuated and can’t be reached with cell phone service unreliable due to the fire.

More than a quarter of Paradise’s residents are senior citizens, and many on the list of the missing are 65 or older.

Butte County Sheriff and Coroner Kory Honea has invited relatives of the missing to visit the sheriff’s office in Oroville on Thursday so authorities can collect DNA samples from them. The DNA will be used to help identify fire victims, Honea said.

“This is a daunting task. We feel really bad for the people who don’t know what happened to their loved ones and our hearts go out to them,” Butte County Sheriff’s Investigations Sgt. Steve Collins said. “We want to give them some answers.”

Troops, cadaver dogs and coroners involved

The somber search for the missing in Butte County is painstaking.

It involves 461 people and 22 cadaver dogs in Paradise and in parts of the communities of Magalia and Concow, authorities said.

Dozens of National Guard troops have joined the search effort, Collins said. Once they find the remains, with the help of forensic experts, the coroners are sent to recover them.

To enable searchers access to the destroyed structures, crews help move collapsed buildings and roofs out of the way.

The white overalls protect the rescue workers from ash and debris and help avoid contamination, Collins said.

“They are going to be searching vehicles that have been burned. They’ll be searching residences that have been burned. Checking around the residences … our mission is to find the victims from this fire, recover them and get them identified and notify the families to give them some answers.”

The search area is wide and spread out.

“It’s not just the area; it’s the number of homes, the number of trailers, the multistory buildings. All of that changes the complexity of this operation,” Collins said.

Experts are conducting targeted searches by first sending deputies to areas in which people have been reported missing. The number changes daily with more calls coming in.

“We’re trying to follow up with those people who are calling in to find out if they’ve made any contact with their loved ones,” Collins said. “We’re asking people to call us if they do come in contact with their loved one so that we don’t spend time looking for somebody that’s already found.”

Suspected outbreak of norovirus reported

More than 9,600 firefighters, including many from out of state, are battling wildfires across California.

Other fires in the state

In Southern California, the Woolsey Fire — which, like the Camp Fire, began November 8 — has killed at least two people in Malibu. Authorities are trying to determine whether a third person found in a burned home in Agoura Hills died as a result of that fire, the Los Angeles County Sheriff’s Department said.

More than 230,000 acres burned in California in the past week. That’s larger than the cities of Chicago and Boston combined. And in 30 days, firefighters have battled more than 500 blazes, said Cal Fire, the state’s forestry and fire protection agency.

More than 300,000 people have been forced from their homes statewide. Most of those live in Los Angeles County, where 170,000 were evacuated.